Hi all, i have this client that is having an issue with thunderbird, im not much of a thunderbird guy so i really dont know what the issue is. Ive googled it but nothing matches my situation. So, i setup automatic mail filtering (Messages go to respective folders automatically) and everything works fine except for attachments, the (PDF) attachments show up as 0KB when downloaded to the desktop or Adobe throws a warning when opening it. The initial error in thunderbird is "this attachment appears to be empty, Check your firewall/antivirus" Its not the firewall/antivirus because if non filtered emails that go directly to the inbox have the attachments working 100%, even if i drag the affected email from the folder to INBOX the attachments work just fine. Any ideas? Funny enough .zip attachments seem to be fine. Account type: IMAP Thanks.